Disable JIT compiler on unsupported platforms (#21215)

ledger/src/builtins.rs

@@ -9,6 +9,12 @@ macro_rules! to_builtin {
 
 /// Builtin programs that are always available
 fn genesis_builtins(bpf_jit: bool) -> Vec<Builtin> {
+    // Currently JIT is not supported on the BPF VM:
+    // !x86_64: https://github.com/qmonnet/rbpf/issues/48
+    // Windows: https://github.com/solana-labs/rbpf/issues/217
+    #[cfg(any(not(target_arch = "x86_64"), target_family = "windows"))]
+    let bpf_jit = false;
+
     vec![
         to_builtin!(solana_bpf_loader_deprecated_program!()),
         if bpf_jit {